Portable generator



FIG. 1 is a front perspective view of a portable generator showing my new design;

FIG. 2 is a left side elevational view thereof;

FIG. 3 is a right side elevational view thereof;

FIG. 4 is a rear elevational view thereof;

FIG. 5 is a front elevational view thereof; and,

FIG. 6 is a top plan view thereof.

The broken lines in the drawing views are included for the purpose of illustrating unclaimed portions only, and forms no part of the claimed design. 

CLAIM The ornamental design for a portable generator, as shown and described. 